diff options
| author | Timothy Arceri <[email protected]> | 2017-01-13 17:25:11 +1100 |
|---|---|---|
| committer | Timothy Arceri <[email protected]> | 2017-04-24 12:08:14 +1000 |
| commit | 7a7ee40c2de01a927d78852b18fc0b93e780df9c (patch) | |
| tree | 4795bff9c50f36918b16b7298a1423cf4d90a9d1 /src/intel/compiler | |
| parent | fb2269fed16cf804f5b7538537ec6d53ed1e20c9 (diff) | |
nir/i965: add before ffma algebraic opts
This shuffles constants down in the reverse of what the previous
patch does and applies some simpilifications that may be made
possible from doing so.
Shader-db results BDW:
total instructions in shared programs: 12980814 -> 12977822 (-0.02%)
instructions in affected programs: 281889 -> 278897 (-1.06%)
helped: 1231
HURT: 128
total cycles in shared programs: 246562852 -> 246567288 (0.00%)
cycles in affected programs: 11271524 -> 11275960 (0.04%)
helped: 1630
HURT: 1378
V2: mark float opts as inexact
Reviewed-by: Elie Tournier <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/intel/compiler')
| -rw-r--r-- | src/intel/compiler/brw_nir.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c index 36ccdf3cb1e..3c0a7ced572 100644 --- a/src/intel/compiler/brw_nir.c +++ b/src/intel/compiler/brw_nir.c @@ -605,6 +605,12 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler, UNUSED bool progress; /* Written by OPT */ + + do { + progress = false; + OPT(nir_opt_algebraic_before_ffma); + } while (progress); + nir = nir_optimize(nir, compiler, is_scalar); if (devinfo->gen >= 6) { |